Door latch



FIG. 1 is a front elevational view of a door latch showing my newdesign;

FIG. 2 is a front and left side perspective view thereof; and,

FIG. 3 is a front and right side perspective view thereof.

The broken lines shown in the drawing disclosure are for illustrativepurposes only and form no part of the claimed design.

The ornamental design for a door latch, as shown and described. 